When Google (GOOG) announced that Android boss Andy Rubin was stepping down and being replaced by Chrome head Sundar Pichai, speculation erupted suggesting that Android and Chrome OS would eventually merge. According to Google chairman and former CEO Eric Schmidt, combining the two operating systems is not currently part of the company’s plans. Schmidt did confirm to Reuters that there will be more “commonality” between its mobile and desktop platforms moving forward, but they will remain separate operating systems. The executive also dispelled rumors that he might be leaving Google.